Re: [zfs-discuss] ZFS overhead killed my ZVOL

2007-04-03 Thread Brian H. Nelson
Can anyone comment? -Brian Brian H. Nelson wrote: Adam Leventhal wrote: On Tue, Mar 20, 2007 at 06:01:28PM -0400, Brian H. Nelson wrote: Why does this happen? Is it a bug? I know there is a recommendation of 20% free space for good performance, but that thought never occurred to me when

Re: [zfs-discuss] ZFS overhead killed my ZVOL

2007-03-28 Thread Brian H. Nelson
Adam Leventhal wrote: On Tue, Mar 20, 2007 at 06:01:28PM -0400, Brian H. Nelson wrote: Why does this happen? Is it a bug? I know there is a recommendation of 20% free space for good performance, but that thought never occurred to me when this machine was set up (zvols only, no zfs proper).

Re: [zfs-discuss] ZFS overhead killed my ZVOL

2007-03-20 Thread Adam Leventhal
On Wed, Mar 21, 2007 at 01:36:10AM +0100, Robert Milkowski wrote: > btw: I assume that compression level will be hard coded after all, > right? Nope. You'll be able to choose from gzip-N with N ranging from 1 to 9 just like gzip(1). Adam -- Adam Leventhal, Solaris Kernel Development http:

Re[2]: [zfs-discuss] ZFS overhead killed my ZVOL

2007-03-20 Thread Robert Milkowski
Hello Adam, Wednesday, March 21, 2007, 1:24:35 AM, you wrote: AL> On Wed, Mar 21, 2007 at 01:23:06AM +0100, Robert Milkowski wrote: >> Adam, while you are here, what about gzip compression in ZFS? >> I mean are you going to integrate changes soon? AL> I submitted the RTI today. Great! btw: I a

Re: [zfs-discuss] ZFS overhead killed my ZVOL

2007-03-20 Thread Adam Leventhal
On Wed, Mar 21, 2007 at 01:23:06AM +0100, Robert Milkowski wrote: > Adam, while you are here, what about gzip compression in ZFS? > I mean are you going to integrate changes soon? I submitted the RTI today. Adam -- Adam Leventhal, Solaris Kernel Development http://blogs.sun.com/ahl __

Re[2]: [zfs-discuss] ZFS overhead killed my ZVOL

2007-03-20 Thread Robert Milkowski
Hello Adam, Wednesday, March 21, 2007, 12:42:49 AM, you wrote: AL> On Tue, Mar 20, 2007 at 06:01:28PM -0400, Brian H. Nelson wrote: >> Why does this happen? Is it a bug? I know there is a recommendation of >> 20% free space for good performance, but that thought never occurred to >> me when thi

Re: [zfs-discuss] ZFS overhead killed my ZVOL

2007-03-20 Thread Adam Leventhal
On Tue, Mar 20, 2007 at 06:01:28PM -0400, Brian H. Nelson wrote: > Why does this happen? Is it a bug? I know there is a recommendation of > 20% free space for good performance, but that thought never occurred to > me when this machine was set up (zvols only, no zfs proper). It sounds like this b

[zfs-discuss] ZFS overhead killed my ZVOL

2007-03-20 Thread Brian H. Nelson
Dear list, Solaris 10 U3 on SPARC. I had a 197GB raidz storage pool. Within that pool, I had allocated a 191GB zvol (filesystem A), and a 6.75GB zvol (filesystem B). These used all but a couple hundred K of the zpool. Both zvols contained UFS filesystems with logging enabled. The (A) filesyst